Fixture for vacuum-tube lamps.



D. MOP. MOORE.

FIXTURE FUR VACUUM TUBE LAMPS. APPLICATION FILED rEB.zo,19o7.

D. MOF. MOORE. FIXTURE FOR VACUUM TUBE LAMPS.'

' APPLIOATION FILED FEB. 26, 1907. n 1,028,092. Patented May 28, 1912.

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FIXTURE FOR VACUUM TUBE LAMPS.

APPLICATION FILED IEB. 26, 1907.

Patented May 28, 1912.

UMTED -s'rxrns 'gx'. l'rENr oEEroE.

DANIEL MOFARLAN MOORE, 0F NEWARK, NEW JERSEY, ASSIGNOR T0 GENERAL ELECTRIC COMPANY, A CORPORATION OF vNEVI' YORK.

FIXTURE Eon vacuum-TERE LAMPS.

glass tube containing a luminous vapor or gas is extended over the spaces to be vlighted .and is supported at intervals from the ceilin or other support.

y invention relates more particularly to the manner and means for installing the system of lighting of the character above referred to, and consists, among other things, in the particular means Aor manner of supporting the tube and in, at the same time, protecting the electric conductor or conductorsf'ormlng a supply wire or wires for said Athe system, said conduit being itself sus-4 f the following description of the preferred.

tube or constituting any other essential portion of the system while, at the same time, utilizing said means of protection as a part of the means for supporting the tube when finally installed.

Brieiy stated, one part of my invention consists inl suspending or supporting the` vacuum ltube in a fixture which is itself sustained by 'an electric conduit-containing a high tension or other electric conductor of pended from a ceiling or other suitable sup'- port in the building or'other interior or location where the tube is to be installed.-

My invention further cons-ists in details of-construction and features of organization of the installation whereby cheapness and facility of installation may be secu-red and other advantages obtained, as will be more apparent to those skilled in the art from manner-of carrying out theV invention.V .r

In the preferred manner of carrying'out f,the invention, the suspension devices for the Speccation of Letters Patent.

Improvements iny Patented May 2s, 1912.

Application mea February 26.197. serial No. 359,446.

supply wire or wires are run.

The invention consists'furtherV in the de tails of construction and combinations of devices hereinafter more particularly described and then specified in the claims.

ln the accompanying drawings, Figure 1 is a side elevation of an apparatus embodyfixtures consist of sections of tubing joined by a suitable coupling box with the con# tinuous line .of conduit through which'lthe ing my invention and shows the same vas applied to the installation'of a vacuum tube for light-ing a'department store. Fig. 2 is an enlarged view of devices at the point where the tube supporting fixture is sustubeand feeding gas to'the same at or near y its center.

1 indicates a-nconduit of'iron or other suitable material ex'te'nding' at one end from a terminal box- 2.

3 is a high tension conductor running through the conduit l and joined in the terminal box in the usual way to any suitable source of energy. 4 is the vacuum lighting tube extending at. one end from the box 2 and having' its electrode therein joined to an opposite pole of the high tension energy source. At 2 is another terminal box 1n which the electrode of the opposite end ofthe vacuum tube is joined tothe electric conductor 3 running through the Aconduit l, said conduit being connected to said terminal box :as-indicated. At suitable intervals, the conduit is sustained by the hangers 5 depending from the ceiling or iother suitable support. l Al 'For cheapness and convenience I employ at intervals in the conduit 1 suitable cross- @at the junction.

, ing or supporting the vacuum tube 4. i These suspension or supporting devices are preferably sustained by hangers 7 formed from sections of metal tubing joined to the junction boxes 6 by a proper pipe junction. If desired, a reducingbushing 8 may be used The fixture for supporting the tube 4 may be of any construction but 1s here shown as comprising merely 'a rin 9 .furnished at lts l inside with a lining of as estos or oth'er suitable material 10. The ring may be made of brass but is properly insulated, preferably from the hanger 7 and the conduit 1 for which purpose I use a porcelain block 12 or black ofother' insulating material to the.

lower end of which the ring is fastened by a suitablescrew 13 as shown in thesection,

Fig; 4. The block of insulation itself is provided with the vertical bore or cavity 14 which is countersunk as shown to support a head for the screw 13, the latter extending down through the lower portion of the bore or opening to engage the ring. The `tubular hanger 7 forms at 1ts lower end a socket for the top portion of the' insulating block 12 and the latter is properly clamped inthe vtube 7 by means Yof a screw 16 .which passes through an opening in the side of the tube 7 and into thebore or cavity -14'to engage Y the inside wall thereof and force it lateral against the inside wall of the tube 7.

I do not limit myself to the particular means shown for -supporting the tube-supporting fixture itself from the end'of the hanger 7, nor tothe particular meansl for securing the -b'lock'to thegend ofthe hanger. Nor do'I limit myself tothe use of a tubularyhangeralthough I preferl to lira-ke, thesame tubular since it affords means`for running down abranehconductor to anelectrode of `the tube lfrom a conductor in the nduit 1` when it is desired to use a seriesofvacu'umy tubes arranged end to` end and having electrodes within the supporting fixture as would be the case if the tubes were supplied with energy according to the system set out inmy .prlor application for Patent No. 315,726, f'rled'May 8th, 1906. This system is ,diagrammatically indicated in Fig. 5..

I do not limit myself to the use' of a ring' and, supporting xture for the tube, but

might use other lforms of ysupportl having reater dimensions in the direction of the j ubesaxis and constructed to have addi- ,tional capacities,besides.thatl of merely supporting the tube.

Leashes In the drawing, Fig. 1, one of the junction boxes 6 is shown of somewhat larger 'dimensions to afford space for the devices by which gas is fed into the tube automatically `to maintain a constant gaseous tension in any deslred manner as, for instance, 1n the manner described in my 'prior Patent 820,364,

datedMay 8th, 1906. This device together with the circuits of the apparatus and one of the ways of connecting the regulating magnet is shown in detail in Fig. 6. f

The terminal box 2 already described containsthe usual transformer forming a high tension energy source. The secondary 15 of said transformer is connected to one electrode of the tube^4 and one terminal of the conductor 3 as therein illustrated. The primary of said transformer is indicated Vat 16.

In the remote terminal box 2 where the straight run of tubing 4 terminates, the opposite electrode of the straightvrun of t-ubing connects tothe high tension conductor 3 running through the conduit 1.

The hanger 7 and fixture 4 sustained from junction box 6 are of any .suitable construction but are adapted to .allow the passage of the as feed tube 17 which passes through the xture and hanger into the box 6 whereinare located the devices for feeding the gas in regulated amounts into the tube. The manner of connection of thefix-4 ture and hanger may be modified at this point as shown in Fig. 7 from the construction shown in the other figures. By feedivng the as int-o the center of the tube, more equa? diffusion of the gas and a more unicured.

.form luminosity throughout the tube is se- 18 indicates the' end of the tube through i.

into the valve casin andthrough the valve into the feed tube 1 The feed regulating magnet 19 is suitably connected to the conductor or conductors running through -the conduit' 1. It may be connected to any of the Ycircuits of the system properfor causing the feed to take place in theman'ner required -which gas from the -desired source'passes but,as shown, 1s connected into the direct' Circuit f the high tension conductor 3. l By thus locating the gas` feed apparatus at or near the. center` of the luminous tube, I not .only secure ther advantages described of` egual diffusion and'uniform luminosity, but a so. avoid fthe necessity o'f running out long feed tubes from the terminals of the luminous tube.

The fixture for vacuum tube lighting com,-

rising the supporting tube, a block o insuation having a vertical countersink, a tubesupporting ring, a fastening 'screw' for se# curing the ring to the lower side of the block and a clamping'screw passingfthrough the side of the supporting tube and into said block, is not herein claimed as it forms the subject of claim in my companion application filed` February 26th, 1907, Serial Number 359,445.

What I claim as my invention is:

1. In a' vacuum tube lighting system, the

combination of a wire conduit sustained from a ceiling or other suitable support by hangers, a vacuum tube sustained at intervals from said conduit, a hollow hanger connected to the conduit and an insulating block secured to said hanger and. having an attached ring-'through which the tube passes.v

2. The combination .with a vacuum tube, of a sustaining ring support therefor, a block of insulating material to the lower side of which the ring is fastened and a tu.-

bular hanger or support forming a socket for the block of insulation.

3. The combination with a vacuum tube, of a sustaining ring support therefor, a block of insulating material -to the lower side of which the ring is fastened, a tubular hanger or support forming a socket for the block of-insulation, and means for clamping the block in said hanger;

4L. In a vacuum (tube lighting system, a

, hollow conduitfor a wire of the system having cross-shaped hollow couplings'inserted` at intervals therein, said couplings having, onthe one hand, hangers coupled thereto and affording means for supporting the vacuum tube, and, on the other hand having connected hangers whereby the coupling itself may be supported from a ceiling orl other suitable support.

5. In a lvacuum tube lighting system, the combination of a vacuum tube, supporting devices sustaining the tube at points intermediate of` its ends,`an automatic gas feed apparatus carried by 'said' supporting devices and provided with a feed regulating magnet, a gas feed tube connecting the tube at the lpoint of support with the gas feed apparatus at said point and connections leading from the feedvregulating magnet atsuh points to the opposite terminal of the tu e. l i 6. In a vacuum tube lighting system, a

rvacuum tube sustained at intervals from'a.

'in it, and a vacuum tube'xture supported fixby a hollow hanger from said couplingand affording a passage for a gas feed tube wlereby gas may be fed into, the vacuum tu e.

9. In a vacuum tube lighting system, a wire conduit containing a wire of the system and provided with a hollow coupling connecting two sections of said conduit, 'said coupling being provided with a hanger adaptedto sustain a fixture for the vacuum tube.

10. In a vacuum tube lighting system, a

wire conduit containing a wire of the system and provlded with a `iunction box conneet-ing two sections of sa1d conduit, said junction box being provided with a hollow' hangerl carrying al su porting fixture for the vacuum. tube and a Ording a passage for a gas feed tube feeding gas to the vacuum tube.

11. In a vacuum. tube lighting system having vacuum tube supporting fixtures sustaining said tube at intervals, a wire c onduit provided with means for supporting said fixtures and with a hollow 'coupling box atan intermediate portion of the tube length, said box being. adaptedl to contain a gas feed regulating magnet and bemg further provided with a hollow hanger through which a gas feed tube may extend to connection with the vacuum tube.

12. In a vacuum tube lighting apparatus, a' vacuum tube extending from one terminal box lto another terminal box, a conduit from which'the tube is sustained at intervals, a4

source of electric energyin one box connected at its poles respectively to'one vterminal of the tube and to one terminal of the supply conductor running through the conduit, a connection in the opposite terminal'box between said supply wire and the opposite terminal of the tube, and a gas feed apparat-us having the feed regulating magnet included in the circuit of the supply-wire at one of the points of support of thetube near itsv center audits gas feedtube connected to the vacuum'tube at or about'the center of the system. Y

13. In a vvacuum tube lighting system, having vacuum tube supporting xtures sus- A taining said tube at' intervals, awireconduit carrying said fixtures and a gas feed regulating magnet located' at a point of support and having its connecting wires running through said conduit.

14. In a vacuum tube lighting system comprising a vacuum tube having an automatic magnetic gas feed, a conduit for the circuit of the magnet having a hollow hanger adapted to inclose the gas feed tube and carrying a sustaining fixture forthe vacuum tube. itself, as and for the purpose described. w

15. In a vacuum tube lighting system, a

16. Ina vacuum tube lighting system having'an automatic magnetic gas feed, the combination substantlally as described of a l wirefconduit haT/'ingyliollowv coupling oxes adapted to contain the automatic magnetic 1'0 gas feed devices, the connecting wires-for mg gas to the vacuum' tube as and for the purposedescribed.

the magnets of said feed 'devices-being run through lsaid tube as and for the purpose described. y Signed at New York in the county of New York and State of New York this 30th day 15 of January A. D. 1907; l

DANIEL MGFARLAN MOORE. Witnesses:

C. T. TISGHNER, Jr., LILLIAN BLOND. 

